Review: Swiss K31

Published on May 10, 2011
Duration: 12:28

This guide details the field stripping and reassembly process for the Swiss K31 rifle, a straight-pull bolt-action military surplus firearm. It covers removing and disassembling the bolt, cleaning components, and reassembling the bolt and rifle. The video emphasizes the rifle's historical context and mechanical improvements.

Quick Summary

The Swiss K31 is a straight-pull bolt-action rifle chambered in 7.5x55 Swiss, known for its accuracy and historical significance. It features a 6-round detachable magazine and was designed with mechanical improvements for faster cycling and enhanced strength, offering approximately 1 MOA potential.

Chapters

  1. 00:00Introduction & Historical Context
  2. 00:42Naming Clarification: K31 vs. Schmidt-Rubin
  3. 01:097.5x55 Swiss Cartridge (GP11)
  4. 02:49Mechanical Improvements & Design
  5. 05:31Action and Magazine Demonstration
  6. 07:03Field Stripping Procedure
  7. 08:22Bolt Reassembly Guide
  8. 10:05Accuracy Test & Market Value

Frequently Asked Questions

What is the primary action type of the Swiss K31 rifle?

The Swiss K31 features a straight-pull bolt action. This design allows the user to cycle the bolt by pulling it directly backward and pushing it directly forward, without the need for rotation, making it efficient for rapid firing.

What caliber does the Swiss K31 use, and is it interchangeable with other common calibers?

The Swiss K31 is chambered in 7.5x55 Swiss, specifically designed for the GP11 cartridge. It is not interchangeable with 7.62x51 NATO due to differences in pressure and dimensions, and using incorrect ammunition is not recommended.

What were the key mechanical improvements in the K31 compared to earlier Swiss rifles?

The K31 incorporated a shortened bolt, forward-mounted locking lugs for enhanced strength, a longer sight radius for improved aiming, and a faster trigger-to-firing-pin ignition time, contributing to its accuracy and performance.

How many rounds does the Swiss K31 magazine hold, and can it be loaded in other ways?

The Swiss K31 uses a detachable steel box magazine with a capacity of 6 rounds. Additionally, the rifle can be efficiently loaded using stripper clips, a common practice for military surplus firearms.

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